Which musical artist had a prominent role in the 2017 film "Kingsman: The Golden Circle"?

Elton John had a prominent role in the 2017 film "Kingsman: The Golden Circle" because he played a fictionalized version of himself, with an exaggerated persona and action-packed scenes. In the movie, Elton John is kidnapped by the film's antagonists and becomes a valuable asset for the film's protagonists, providing both comedic relief and showcasing his musical talents through various lively performances. His role adds an unexpected and entertaining element to the film, making it memorable for audiences.